Application: gvSIG desktop

package org.cresques.px;

import java.util.Iterator;

public class PxLayerList extends PxObjList {

        PxLayer        current = null;

        public PxLayerList() {

                super();

        }

        public void add(PxLayer layer) {

                extent.add(layer.extent);

                super.add(layer);

                current = layer;

        }

        public PxLayer getByName(String lName) {

                Iterator iter = iterator();

                PxLayer layer;

                while (iter.hasNext()) {

                        layer = (PxLayer) iter.next();

                        if (layer.getName().compareTo(lName) == 0)

                                return layer;

                }

                return null;

        }

        public boolean isCurrent(PxLayer layer) {

                return current.getId() == layer.getId();

        }

        public PxLayer getCurrent() {

                return current;

        }

        public void setCurrent(PxLayer layer) {

                current = layer;

                if (!current.isVisible()) current.setVisible(true);

        }

        public Extent getExtent() {

                Extent ext = new Extent();

                PxLayer layer;

                Iterator iter = iterator();

                while (iter.hasNext()) {

                        layer = (PxLayer) iter.next();

                        if (layer.isVisible()) ext.add(layer.extent);

                }

                return ext;

        }

}